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Moving data through the hierarchy z/OS ISPF Software Configuration and Library Manager Guide and Reference SC19-3625-00 |
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Data moves within an SCLM hierarchy in two directions, up or down.
When SCLM promotes members up the hierarchy from one group to the
next group, the following rules apply:
In general, when SCLM accesses a hierarchy from a particular group, it concatenates only the necessary groups. If the lowest group in the hierarchy to be accessed is non-key, SCLM concatenates it with all the non-key groups above it, up to the next key group. From there, SCLM concatenates only the key groups. If the starting group in the hierarchy to be accessed is key, SCLM concatenates only it and the key groups above it. The one exception to this concatenation involves non-key groups that have more than one group promoting into them. Non-key groups of this kind are as significant as key groups, and SCLM must also concatenate them in a hierarchy. Groups that must be concatenated when a hierarchy is to be accessed are known as primary groups. Thus, all key groups and all non-key groups with more than one group promoting into them are primary groups. After members are promoted from the development groups to the higher groups in the hierarchy, users can bring members back to the development groups by performing a draw down. A draw down copies the member at the higher group to the specified development group. For a member to be drawn down it must be within the hierarchical view of the development group. Members can only be drawn down to development groups. SCLM performs an automatic draw down when the member is edited. |
Copyright IBM Corporation 1990, 2014
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